Home / 7,122,152.31-9,828,556.30-3,859,055.36

Finding the Fourth Proportional to 7,122,152.31, 9,828,556.30 and 3,859,055.36

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Solution

The fourth proportional to 7,122,152.31, 9,828,556.30 and 3,859,055.36 is: 5,325,488.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,122,152.31 : 9,828,556.30 = 3,859,055.36 : x
  2. Step 2: Convert to fraction form
    7,122,152.31/9,828,556.30 = 3,859,055.36/x
  3. Step 3: Cross multiply
    7,122,152.31x = 9,828,556.30 × 3,859,055.36
  4. Step 4: Simplify right side
    7,122,152.31x = 37,928,942,863,114.89
  5. Step 5: Solve for x
    x = 37,928,942,863,114.89/7,122,152.31
  6. Step 6: Final answer
    x = 5,325,488.87

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.